People don’t realize how easy it is to get into raiding in this game

[Valence]

I think they notice, they're just desperate to preserve their position as most-favored child and resort to fallacious and disingenuous arguments to do so.

I get the reasoning but to be fair, that "us vs them" approach has never been very constructive. Much like raiders assuming that all casuals must obviously like literally everything that's casual (including farming fates, treasure maps, gold saucer achievements until your eyes literally rot in their sockets), assuming that raiders like and play literally everything is probably a little much. You chose not to play savage and raid for many (very valid) reasons, much like they probably chose not to play other facets of the game for many (valid) reasons. The real problem is their release schedule which drops everything into big clumps at once over our head, where the community and the content is especially known for the FOMO (have fun ranking up pvp after a couple of weeks, or clearing savage in PF after the first weeks, pick one) and where all sorts of challenging pve raids release back to back (DT savage tier 1 > DT ultimate 1 > DT chaotic > DT savage tier 2) with literally no casual pve for everybody else beyond the usual grinds that come at expansion release like fates.

It has positives and negatives.
The biggest negatives would be that it can be impossible to do unsynced runs, since essentially you can trigger multiple mechanics by bursting down the boss.
Another negative would be that it might be even a lot more boring since if you have a low DPS party, you will see the same mechanics from 100 to 75% (for example), over and over, until you see something new/else.

Also, you are wrong about not being able to have a rigid MIT plan. You can assign certain mits/heals tied to specific mechanics.

Burst can still exist, however, it's about your own personal timer and not the boss per se. As long as you don't have a downtime during the 2-minute burst, you will be ok. Even now, when you don't have, you can still have portions of the fight where you can hold burst to better align with other stuff, like pots, for example.

As for BnS and TERA, I wish this game were combat action-oriented instead of the absolute garbage we have currently in place, but it's one of the main reasons why bosses with HP timeline and hard enrages work there (especially in BnS).
I do encourage you to try BnS and see how punishing the combat and bosses are. Aside from the fact that it's extremely fast paced, if you mess your rotation up, you will hard enrage and you will NOT clear the fight. Every single mistake is a huge loss. The only way to overcome mistakes is by being overgeared, and then you open the can of worms BnS struggled with, people simply kicking you because you aren't geared enough.

As for feedback, you can send it via email.

- I do not recall a single ARR/HW fight that has problems unsynched. Some stuff can be wonky but generally mechanics tend to skip rather that stack, which is good.

- Any MIT plan has timers in an excel spreadsheet, but perhaps that's static stuff so forgive me for talking from a static point of view. If you raid with any midcore to hardcore static you'll probably have seen the usual mitigation spreadsheets be shared around. Those are usually there to make sure everybody has assigned mechanics to mit. Even in PF today you'll have to adjust mitigation until it clicks because a mechanic will not have enough and people will die, and players will move their thing around to spread it better which will end up looking like an ad-hoc MIT plan anyway.
With more organic timelines you can still have MIT plans but they will quickly collapse when you realize that your Troubadour will not be up for the coming mechanic because you're ahead in the fight comparatively to usual. I like this approach more because it cannot be spreadsheeted, and I hate spreadsheets and memory games, and I'm fonder of systems based around resource scarcity and management.

- I am not sure what your comment on bursting means, and what it's referring to?

- I do not enjoy fast paced or action games, so I'll politely decline for BnS after reading that description. It's one of the instant turn offs that also prevent me to play WoW in spite of a lot of systems that actually do fit my preferences, because I just can't deal with spamming a 1s GCD. I can see why BnS have people getting kicked from not being geared up enough with such a system but let's not pretend for a second this doesn't happen in XIV: people don't get kicked, they get barred from some PFs that do require higher item levels. It's tomato tomato. Perhaps it's less egregious in XIV? But what do you think would happen if we suddenly had enrages like P8S p1 back on the menu everywhere?

- Feedback via email? Really? I don't even know if they're reading so it's no different from those forums (let's be real for a minute, they're probably reading those even less than the forums), and it's not public, which by definition makes it like an exercise in writing essays to the wind. No trace, I'd write something and have my pc crash and lose it all it wouldn't feel any different.